Compare 399401 vs 400721
| Property | 399401 | 400721 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 3994011 | 4007211 |
| Prime factorization | 399401 | 400721 |
| Divisors count | 2 | 2 |
| Divisors | 1, 399401 | 1, 400721 |
| Number of properties | 5 | 4 |
| Chen primes | 13647th | 13686th |
| Happy primes | 4987th | 5007th |
| Primes | 33811th | 33913th |
| Super primes | 3622nd | |
| Twin primes (1st member) | 3800th | 3809th |
| Roman numberals | ||
| Base 2 | 11000011000001010012 | 11000011101010100012 |
| Base 3 | 2020212121223 | 2021002001123 |
| Base 4 | 12012002214 | 12013111014 |
| Base 5 | 1002401015 | 1003103415 |
| Base 6 | 123210256 | 123311056 |
| Base 7 | 32523027 | 32561667 |
| Base 8 | 14140518 | 14165218 |
| Base 9 | 6677789 | 6706159 |
| Base 10 | 39940110 | 40072110 |
| Base 11 | 25309211 | 25408211 |
| Base 12 | 17317512 | 173a9512 |
| Base 13 | 10ca4213 | 11051913 |
| Base 14 | a57a914 | a606d14 |
| Base 15 | 7d51b15 | 7daeb15 |
| Base 16 | 6182916 | 61d5116 |